Plate heat exchanger and water supply device

Abstract

The utility model relates to the field of heat exchanger provides a plate heat exchanger and water supply device, plate heat exchanger includes heat exchanger main part, the heat exchanger main part includes multilayerly arranged plate piece, and the flow channel is formed between adjacent plate piece, still include the clamp structure of the heat exchanger main part of sheathed, the clamp structure abuts the outer wall of heat exchanger main part to clamp each plate piece. The plate heat exchanger and water supply device provided by the utility model, the clamp structure abuts the outer wall of heat exchanger main part, to restrict heat exchanger main part outer wall with its structure, avoid heat exchanger main part deformation, influence plate heat exchanger's heat exchange efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchangers, and in particular relates to a plate heat exchanger and a water supply device. Background Technology

[0002] With the development of technology, water purifiers have been applied to people's lives. Water purifiers are used to filter impurities and improve water quality, and heat exchangers are an integral part of water purifiers. Currently, plate heat exchangers are a common type of heat exchanger. During long-term use, the plates of plate heat exchangers often deform due to thermal reactions or the pressure from the fluid within the flow channels. Furthermore, heat exchangers are often formed by stamping plates, which introduces internal stress, making them prone to deformation. If the heat exchanger deforms, it will prevent normal heat exchange or reduce its heat exchange efficiency. Utility Model Content

[0003] The purpose of this utility model is to overcome at least one of the shortcomings of the prior art and to provide a plate heat exchanger and a water supply device, wherein the plate heat exchanger is not easily deformed and has stable heat exchange efficiency.

[0004] The technical solution of this utility model is: In a first aspect, a plate heat exchanger is provided, comprising a heat exchanger body, the heat exchanger body comprising multiple layers of stacked plates, with flow channels formed between adjacent plates; and further comprising a clamping structure sleeved on the heat exchanger body, the clamping structure abutting against the outer wall of the heat exchanger body to clamp each of the plates.

[0005] In some embodiments, the clamp structure is annular and surrounds the heat exchanger body; or, the clamp structure is spiral and wraps around the heat exchanger body. In some embodiments, the clamp structure includes a first connecting portion and a second connecting portion; the first connecting portion and the second connecting portion are fixedly connected to form a closed shape that clamps the heat exchanger body to the outside and at least along the direction of plate stacking; Alternatively, the clamp structure may be formed by bending a rigid material and fixing it at both ends.

[0006] In some embodiments, the first connecting portion is U-shaped, and the second connecting portion is U-shaped or straight and is welded to the first connecting portion or connected by a fixed connector; Alternatively, the first connecting part and the second connecting part are in an "L" shape, and the first connecting part and the second connecting part are welded and fixed together or connected by a fixed connector; Alternatively, the clamp structure includes a metal plate that is connected end to end in a ring shape, and the clamp structure is connected end to end by welding; the edge of the clamp structure has a flanged structure.

[0007] In some embodiments, one clamping structure is provided, or at least two clamping structures are provided, and at least two clamping structures are spaced apart along a first direction of the plate heat exchanger.

[0008] In some embodiments, the clamping structure is connected to the heat exchanger body via a clamping structure on the side facing the heat exchanger body. Alternatively, the clamp structure is bonded to the heat exchanger body on the side facing the heat exchanger body; Alternatively, the clamp structure is welded to the heat exchanger body.

[0009] In some embodiments, the edge of the clamp structure has reinforcing ribs.

[0010] In some embodiments, the plates include a main body and a connecting portion, and the flow channel is formed between the main bodies of adjacent plates. The connecting portion is connected to the main body in an outward peripheral direction. Within a heat exchanger body, the connecting portions of a plurality of plates extend outward peripherally and overlap and abut against each other to form a sealing section at the outer peripheral edge of the heat exchanger body. The sealing section seals the flow channel. The sealing section protrudes from the outer peripheral side of the heat exchanger body.

[0011] In some embodiments, the plate heat exchanger further includes a mounting bracket disposed at the lower end of the heat exchanger body and fixedly connected to the sealing sections on opposite sides of the heat exchanger body; The mounting bracket has extension sections at both ends, and the extension sections are provided with fixing holes. The fixing holes are provided with locking elements, which are used to fix the plate heat exchanger in the installation position.

[0012] Secondly, a water supply device is also provided, including a device body on which a plate heat exchanger as described in the first aspect is installed.

[0013] The advantages of the plate heat exchanger and water supply device provided by this utility model are as follows: The clamp structure abuts against the outer wall of the heat exchanger body, and restricts the shape of the outer wall of the heat exchanger body with its own structure, thereby avoiding deformation of the heat exchanger body and affecting the heat exchange efficiency of the plate heat exchanger. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional schematic diagram of the plate heat exchanger provided in the first embodiment of this utility model; Figure 2 This is a cross-sectional view of the plate heat exchanger provided in the first embodiment of this utility model; Figure 3 This is a second-view perspective perspective of the plate heat exchanger provided in the first embodiment of this utility model; Figure 4 This is a three-dimensional schematic diagram of the plate heat exchanger provided in the second embodiment of this utility model; Figure 5 This is a three-dimensional schematic diagram of the plate heat exchanger provided in the third embodiment of this utility model.

[0016] 1. Heat exchanger body; 10. Plates; 11. Main body; 12. Connecting part; 13. Sealing section; 2. Clamping structure; 21. Reinforcing rib; 3. Mounting bracket; 31. Extension section; 311. Fixing hole; 5. Device body; 100. Plate heat exchanger. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] It should be noted that the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to direct setup or connection, or indirect setup or connection through centered components or centered structures.

[0019] Furthermore, in embodiments of this utility model, terms such as "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, or in a conventional placement or usage state. These terms are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure, feature, device, or element referred to must have a specific orientation or positional relationship, nor that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0020] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the various specific technical features / embodiments in this utility model will not be described separately.

[0021] During long-term use, the plates of a heat exchanger often deform due to thermal reactions or the pressure from the fluid within the flow channels. Furthermore, heat exchangers are often formed by stamping plates, which introduces internal stress, making them prone to deformation. Deformation of the heat exchanger will prevent it from functioning properly or will reduce its heat exchange efficiency.

[0022] Therefore, as Figures 1 to 3 As shown, in a first aspect, the present invention provides a plate heat exchanger 100, which includes a heat exchanger body 1, the heat exchanger body 1 including multiple layers of stacked plates 10, with flow channels formed between adjacent plates 10; and also includes a clamping structure 2 sleeved on the heat exchanger body 1, the clamping structure 2 abutting against the outer wall of the heat exchanger body 1 to clamp each of the plates 10.

[0023] The plate heat exchanger 100 includes a heat exchanger body 1, with multiple layers of plates 10 forming flow channels within the body 1 for the heat transfer medium and the medium being transferred to pass through, facilitating heat exchange within the body 1. Simultaneously, a clamping structure 2 is fitted onto the outer side of the body 1 to maintain its outer wall structure. The clamping structure 2 abuts against the outer wall of the body 1, and its shape restricts the structural shape of the outer wall. Furthermore, the clamping structure 2 can be pre-tightened to the body 1 to clamp each plate 10. This prevents deformation of the body 1 and avoids affecting the heat exchange efficiency of the plate heat exchanger 100.

[0024] In some embodiments, the clamping structure 2 can be an annular metal plate surrounding the heat exchanger body 1. The annular clamping structure 2 is designed so that it can be fitted onto the heat exchanger body 1, placing the heat exchanger body 1 within the inner ring of the clamping structure 2 and at least partially abutting against it. This restricts the shape change of the heat exchanger body 1 by the inner ring structure of the clamping structure 2. It is understood that multiple clamping structures 2 can be provided on the heat exchanger body 1.

[0025] Alternatively, the clamp structure 2 can be configured as a spiral shape, so that when it is sleeved on the heat exchanger body 1, it wraps around the heat exchanger body 1, increasing the area of ​​contact between the inner side of the individual clamp structure 2 and the heat exchanger body 1, and preventing the heat exchanger body 1 from deforming.

[0026] Please see Figure 4 As a second embodiment provided in this application, in this embodiment, the clamping structure 2 is spiral-shaped and is sleeved on the heat exchanger body 1 and wrapped around the heat exchanger body 1.

[0027] In some embodiments, the clamp structure 2 includes a first connecting part and a second connecting part; the first connecting part and the second connecting part are fixedly connected to form a closed shape that clamps the heat exchanger body 1 to the outside of the heat exchanger body 1 and clamps each of the plates 10 at least along the direction of the stacking of the plates 10. Specifically, the first connecting part can be U-shaped, while the second connecting part can be straight.

[0028] In other embodiments, the first connecting portion may be U-shaped, and the second connecting portion may also be U-shaped.

[0029] In other embodiments, the first connecting portion and the second connecting portion are L-shaped; the first connecting portion and the second connecting portion are connected end to end, thereby forming a roughly rectangular closed shape, which encloses the heat exchanger body 1 within the rectangle.

[0030] Specifically, the contact point between the first connecting part and the second connecting part can be fixedly connected by welding, or it can be fixedly connected by using threads as a fixed connecting element.

[0031] Alternatively, the clamp structure 2 may also comprise a rigid material bent and fixed at both ends. For example, the clamp structure 2 comprises a metal plate that is connected end-to-end in a ring shape, and the clamp structure 2 is connected end-to-end by welding; the edges of the clamp structure 2 have a flanged structure.

[0032] In some embodiments, at least two clamping structures 2 are provided, and at least two clamping structures 2 are spaced apart along a first direction of the plate heat exchanger 100.

[0033] Please see Figure 1 With the length direction of the heat exchanger body 1 as the first direction, two clamping structures 2 are arranged at intervals on the heat exchanger body 1. In this way, multiple clamping structures 2 can clamp different positions of the heat exchanger body 1 along the length direction of the heat exchanger body 1.

[0034] Specifically, even if some areas on the outer wall of the heat exchanger body 1 are not in direct contact with the inner wall of the clamping structure 2, the deformation of the areas on the heat exchanger body 1 that are in contact with the clamping structure 2 is restricted by the clamping structure 2. The structure of the outer wall of the heat exchanger body 1 can also prevent the deformation of some areas on the outer wall of the heat exchanger body 1. Therefore, multiple clamping structures 2 can be evenly arranged on the heat exchanger body 1 so that the restricted area caused by the clamping structure 2 on the outer wall of the heat exchanger body 1 is more evenly distributed on the outer wall of the heat exchanger body 1, and the deformation restriction effect is better.

[0035] Alternatively, only one clamp structure 2 may be provided.

[0036] In some embodiments, the clamping structure 2 is connected to the heat exchanger body 1 via a clamping structure on the side facing the heat exchanger body 1.

[0037] When the clamping structure 2 is fitted onto the heat exchanger body 1, in order to fix the clamping structure 2 to the heat exchanger body 1, the clamping structure 2 can be provided with a protrusion on the side facing the heat exchanger body 1, and the heat exchanger body 1 has a corresponding groove. The protrusion and the groove form a clamping structure, so that the clamping structure 2 can be clamped and connected to the heat exchanger body 1. Alternatively, the clamping structure 2 has a groove on the side facing the heat exchanger body 1, and the heat exchanger body 1 has a corresponding protrusion.

[0038] Of course, the clamp structure 2 can also be glued or welded to the heat exchanger body 1.

[0039] In some embodiments, the edge of the clamp structure 2 has reinforcing ribs 21.

[0040] After the clamp structure 2 is fitted onto the heat exchanger body 1, in order to prevent the clamp structure 2 from being squeezed and bent by the force of the heat exchanger body 1 deforming from the inside to the outside and losing its function of restraining the shape of the heat exchanger body 1, a raised reinforcing rib 21 can be added to the edge of the clamp structure 2 to enhance the structural strength of the clamp structure 2.

[0041] Specifically, please refer to Figure 1 and Figure 3 In this embodiment, the clamp structure 2 is a strip-shaped metal plate. Reinforcing ribs 21 are provided on the upper end of the clamp structure 2 and on both sides along the axial direction of the annular clamp structure 2. The reinforcing ribs 21 extend along the edge of the annular clamp structure 2 and can prevent the clamp structure 2 from deforming.

[0042] Specifically, the original component of the clamp structure 2 can be a strip of metal sheet, such as a stainless steel sheet, which is processed and bent to surround the heat exchanger body 1, and the two ends are connected by welding to form a ring. The edge of the clamp structure 2 has a flange structure, which functions as a reinforcing rib 21.

[0043] In some embodiments, a pad is provided on the side of the clamp structure 2 facing the heat exchanger body 1, and the pad is used to abut against the heat exchanger body 1.

[0044] In practical applications, in order to further ensure the contact between the inner side of the clamp structure 2 and the surface of the heat exchanger body 1, a gasket can be provided on the side of the clamp structure 2 facing the heat exchanger body 1, and the clamp structure 2 abuts against the heat exchanger body 1 with the gasket.

[0045] For example, the gasket can be a rubber gasket that is set inside the clamping structure 2 and has a certain degree of elasticity. When the clamping structure 2 is fitted onto the heat exchanger body 1, the rubber gasket, as a gasket, can abut against the outer wall of the heat exchanger body 1 and be squeezed by both the heat exchanger body 1 and the clamping structure 2.

[0046] In some embodiments, the plate 10 includes a main body portion 11 and a connecting portion 12, and the flow channel is formed between the main body portions 11 of adjacent plates 10. The main body portion 11 is connected to the connecting portion 12 in the outward peripheral direction. In a heat exchanger body 1, the connecting portions 12 of a plurality of plates 10 extend in the outward peripheral direction and overlap and abut against each other to form a sealing section 13 at the outer peripheral edge of the heat exchanger body 1. The sealing section 13 seals the flow channel. The sealing section 13 protrudes from the outer peripheral side of the heat exchanger body 1.

[0047] In practical applications, in the heat exchanger body 1, each plate 10 has a main body portion 11. The main body portions 11 of adjacent plates 10 form a flow channel after multiple plates 10 are assembled, and all the main body portions 11 of the plates 10 are connected to connecting portions 12 in the outward peripheral direction. Furthermore, after the connecting portions 12 of all plates 10 extend in the outward peripheral direction from their respective main body portions 11, they converge and abut against each other to form a sealing section 13. The convergence and abutment of the connecting portions 12 makes the height of the sealing section 13 less than the height of the heat exchanger body 1, and gives the outer side wall of the heat exchanger body 1 a certain degree of slope. At the same time, the sealing section 13 can be set at the bottom of the heat exchanger body 1, so that the outer side wall of the heat exchanger body 1 is approximately a slope that gradually widens from top to bottom, making the cross-section of the heat exchanger body 1 approximately trapezoidal.

[0048] Please see Figure 3 In this embodiment, the outer side wall of the heat exchanger body 1 is approximately an outwardly sloping surface that gradually slopes from top to bottom, making the cross-section of the heat exchanger body 1 approximately trapezoidal. Furthermore, there is a roughly triangular cross-section between the left and right sides of the heat exchanger body 1 and the clamping structure 2; the outer side of the connecting portion 12 of the uppermost plate 10 in the heat exchanger body 1 mates with the upper side of the sealing section 13, forming an obtuse-angled fork in the cross-section of this cross-section, which helps to prevent the heat exchanger body 1 from deforming in the left and right directions.

[0049] In practical applications, the lower end of the heat exchanger body 1 can be aligned with the external equipment to install the plate heat exchanger 100, with the sealing section 13 positioned on the end of the heat exchanger body 1 close to the external equipment. Thus, on the side of the heat exchanger body 1, the outer wall structure corresponding to the two opposite sides gradually slopes towards the middle of the heat exchanger body 1 from the direction closer to the external equipment to the direction farther away from the external equipment.

[0050] When manufacturing the heat exchanger body 1, the connecting portions 12 (extending outward from the main body portion 11) of each plate 10 can be stamped to make the connecting portions 12 of each plate 10 abut and stack. After the connecting portions 12 (extending outward from the main body portion 11) abut and stack, a sealing section 13 protruding from the outer periphery of the heat exchanger body 1 is formed. The sealing section 13 seals the flow channel formed by the stacking and splicing of adjacent plates 10 between the main body portions 11 of the heat exchanger body 1. In this way, the heat exchanger body 1 is simple to manufacture and easy to produce.

[0051] Specifically, the connecting portion 12 at the edge of the plate 10 can be laser welded to form a fused sealing section 13.

[0052] By implementing the above scheme, the structure of the heat exchanger body 1 is reasonably matched, and the clamping structure 2 effectively maintains the shape of the heat exchanger body 1.

[0053] The plate heat exchanger 100 also includes a mounting bracket 3, which is disposed at the lower end of the heat exchanger body 1 and is fixedly connected to the sealing sections 13 on opposite sides of the heat exchanger body 1.

[0054] In practical applications, a mounting bracket 3 can be installed at the lower end of the heat exchanger body 1.

[0055] With the sealing section 13 positioned at the lowest end of the heat exchanger body 1, the mounting bracket 3 is fixedly connected to the sealing section 13. The fixing method can be welding, screwing, riveting, etc., and is not limited here. Fixing the mounting bracket 3 to the sealing section 13 avoids interference with the main body 11 of the plate 10 when the mounting bracket 3 is placed on the heat exchanger body 1, thus preventing interference with the heat exchange efficiency of the main body 11. In this way, the structure of the heat exchanger body 1 is more reasonable, and the heat exchange efficiency is more stable.

[0056] Furthermore, the mounting bracket 3 can be fixedly connected to the sealing section 13 by abutting against the lower end of the heat exchanger body 1, which is reasonable in structure and simple in processing.

[0057] The mounting bracket 3 has extension sections 31 at both ends, and each extension section 31 is provided with a fixing hole 311. A locking element, such as a screw, is provided on the fixing hole 311. The fixing hole 311 is used for the screw to pass through in order to fix the plate heat exchanger 100 in the installation position, such as a specific position on an external device.

[0058] Please see Figure 5 In this third embodiment, the lower end of the heat exchanger body 1 is aligned with the device body 5, which serves as an external device, to mount the plate heat exchanger 100. At this time, a mounting bracket 3 is positioned at the end of the plate heat exchanger 100 closest to the device body 5. The mounting bracket 3 has an extension section 31, and a fixing hole 311 is provided on the extension section 31. By screwing screws through the fixing holes 311 and screwing them into the device body 5, the plate heat exchanger 100 is fixed to its mounting position on the device body 5.

[0059] Please see Figure 1 In this embodiment, the two clamping structures 2 on the heat exchanger body 1 are positioned closer to the center of the heat exchanger body 1 than the two mounting brackets 3. When manufacturing the plate heat exchanger 100, the clamping structures 2 can be fitted onto the heat exchanger body 1 first, and then the mounting brackets 3 can be placed on the heat exchanger body 1. Of course, in other embodiments, the two mounting brackets 3 on the heat exchanger body 1 can also be positioned closer to the center of the heat exchanger body 1 than the two clamping structures 2.

[0060] Please see Figure 5 Secondly, this application also provides a water supply device, including a device body 5, wherein the device body 5 is equipped with the plate heat exchanger 100 described above.

[0061] In some embodiments, the clamp structure 2 can be fixedly connected to the mounting bracket 3, for example by welding, so that the mounting bracket 3 stabilizes the position of the clamp structure 2 on the heat exchanger body 1.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plate heat exchanger, characterized in that, The device includes a heat exchanger body (1), which includes multiple layers of stacked plates (10) with flow channels formed between adjacent plates (10); it also includes a clamping structure (2) fitted onto the heat exchanger body (1), which abuts against the outer wall of the heat exchanger body (1) to clamp each of the plates (10).

2. A plate heat exchanger as described in claim 1, characterized in that, The clamp structure (2) is annular and surrounds the heat exchanger body (1); or the clamp structure (2) is spiral and wraps around the heat exchanger body (1).

3. A plate heat exchanger as described in claim 1, characterized in that, The clamp structure (2) includes a first connecting part and a second connecting part; the first connecting part and the second connecting part are fixedly connected to form a closed shape that clamps the heat exchanger body (1) on the outside and clamps each of the plates (10) at least along the stacking direction of the plates (10). Alternatively, the clamp structure (2) may be formed by bending a rigid material and fixing it at both ends.

4. A plate heat exchanger as described in claim 3, characterized in that, The first connecting part is U-shaped, and the second connecting part is U-shaped or straight and is welded to the first connecting part or connected by a fixed connector. Alternatively, the first connecting part and the second connecting part are in an "L" shape, and the first connecting part and the second connecting part are welded and fixed together or connected by a fixed connector; Alternatively, the clamp structure (2) includes a metal plate that is connected end to end in a ring shape, and the clamp structure (2) is connected end to end by welding; the edge of the clamp structure (2) has a flange structure.

5. A plate heat exchanger as described in any one of claims 1-4, characterized in that, There is one clamp structure (2), or there are at least two clamp structures (2), and at least two clamp structures (2) are spaced apart along the first direction of the plate heat exchanger.

6. A plate heat exchanger as described in any one of claims 1-4, characterized in that, The clamp structure (2) is connected to the heat exchanger body (1) on the side facing the heat exchanger body (1) through a clamping structure; Alternatively, the clamp structure (2) is bonded to the heat exchanger body (1) on the side facing the heat exchanger body (1); Alternatively, the clamp structure (2) may be welded to the heat exchanger body (1).

7. A plate heat exchanger as described in any one of claims 1-4, characterized in that, The edge of the clamp structure (2) has reinforcing ribs (21).

8. A plate heat exchanger as described in any one of claims 1-4, characterized in that, The plate (10) includes a main body (11) and a connecting part (12). The flow channel is formed between the main bodies (11) of adjacent plates (10). The connecting part (12) is connected to the main body (11) in the outward peripheral direction. In a heat exchanger body (1), the connecting parts (12) of a plurality of plates (10) extend in the outward peripheral direction and overlap and abut against each other to form a sealing section (13) at the outer peripheral edge of the heat exchanger body (1). The sealing section (13) seals the flow channel. The sealing section (13) protrudes from the outer peripheral side of the heat exchanger body (1).

9. A plate heat exchanger as described in claim 8, characterized in that, The plate heat exchanger also includes a mounting bracket (3), which is located at the lower end of the heat exchanger body (1) and is fixedly connected to the sealing sections (13) on opposite sides of the heat exchanger body (1). The mounting bracket (3) has extension sections (31) at both ends. The extension sections (31) are provided with fixing holes (311). The fixing holes (311) are provided with locking elements. The locking elements are used to fix the plate heat exchanger in the installation position.

10. A water supply device, characterized in that, It includes a device body (5), which is equipped with a plate heat exchanger as described in any one of claims 1-9.

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